# First trailer for Avengers: Doomsday finally released Superheroes face an interuniversal threat. - **Source:** [Ars Technica - All content](https://brifing.si/source/b728770c-8dda-457a-8986-84879c9fc42c) - **Published:** 2026-07-20 - **Topic:** [Business](https://brifing.si/c/business) - **Original article:** - **On Brifing:** https://brifing.si/s/b3a2fdd1-5db1-418d-9a77-e8b2370414eb ## Trailer Highlights The Avengers: Doomsday trailer showcases an epic gathering of superheroes from three different universes. With Thor's ominous warnings, an unprecedented threat is presented to the audience. The trailer also features cameos from numerous characters. ## New and Old Heroes The trailer introduces new characters like Thunderbolts* (New Avengers) and Fantastic Four members, alongside classics like Charles Xavier and Magneto. The return of Steve Rogers, still worthy of Mjölnir, is a standout moment. ## Thor's Warning In the trailer, Thor reflects on past battles, emphasizing that the current threat is far greater. He calls on the heroes to unite, saying, 'If you return, you will return as brothers.' This speech sets the tone for the film. ## Cameo Appearances The trailer includes brief glimpses of characters like Spider-Man, Doctor Strange, and Hawkeye. Supporting characters such as Thor's adopted daughter Love and Scott Lang's daughter Cassie also appear, hinting at a broad storyline. ## Vision and Plot Avengers: Doomsday marks the beginning of MCU's Phase Six, set to release in 2026 and conclude with Avengers: Secret Wars in 2027. The trailer builds excitement for this grand finale. ## Fan Expectations Marvel fans are thrilled by the trailer's hints. Thor's speech and Steve Rogers' return suggest a major conflict ahead. This could be a pivotal moment for the future of the MCU. ## Sources covering this story - https://arstechnica.com/culture/2026/07/the-first-trailer-for-avengers-doomsday-is-finally-here/ — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._